chrome/browser/extensions/api/serial/serial_port_enumerator.h

// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_EXTENSIONS_API_SERIAL_SERIAL_PORT_ENUMERATOR_H_
#define CHROME_BROWSER_EXTENSIONS_API_SERIAL_SERIAL_PORT_ENUMERATOR_H_

#include <set>
#include <string>

#include "base/gtest_prod_util.h"

FORWARD_DECLARE_TEST(SerialPortEnumeratorTest, ValidPortNamePatterns);
FORWARD_DECLARE_TEST(SerialPortEnumeratorTest, InvalidPortNamePatterns);

namespace extensions {

class APIResourceEventNotifier;

// Discovers and enumerates likely serial ports on the current machine.
class SerialPortEnumerator {
 public:
  typedef std::set<std::string> StringSet;

  // Returns true if the given port name (e.g., "/dev/tty.usbmodemXXX") is in
  // the supplied set of names of serial ports that exist on this machine.
  static bool DoesPortExist(const StringSet& name_set,
                            const std::string& port_name);

  static StringSet GenerateValidSerialPortNames();

 private:
  // Returns a StringSet of patterns to be used with MatchPattern.
  static StringSet GenerateValidPatterns();

  FRIEND_TEST_ALL_PREFIXES(::SerialPortEnumeratorTest, ValidPortNamePatterns);
  FRIEND_TEST_ALL_PREFIXES(::SerialPortEnumeratorTest, InvalidPortNamePatterns);
};

}  // namespace extensions

#endif  // CHROME_BROWSER_EXTENSIONS_API_SERIAL_SERIAL_PORT_ENUMERATOR_H_